A118192 - cp's OEIS frontend

A118192 Antidiagonal sums of triangle A118190: a(n) = Sum_{k=0..floor(n/2)} 5^(k(n-2k)) for n>=0.

n	a(n)
0	1
1	1
2	2
3	6
4	27
5	151
6	1252
7	18876
8	421877
9	11797501
10	489062502
11	36867190626
12	4119892578127
13	576049853531251
14	119400024902343752
15	45003894807128984376
16	25145828723919677734377
17	17579646409034759521875001

[1, 1, 2, 6, 27, 151, 1252, 18876, 421877, 11797501, 489062502, 36867190626, 4119892578127, 576049853531251, 119400024902343752, 45003894807128984376, 25145828723919677734377, 17579646409034759521875001]

cp's OEIS Frontend

A118192 Antidiagonal sums of triangle A118190: a(n) = Sum_{k=0..floor(n/2)} 5^(k(n-2k)) for n>=0.

Table of values

List of values

cp's OEIS Frontend

A118192 Antidiagonal sums of triangle A118190: a(n) = Sum_{k=0..floor(n/2)} 5^(k*(n-2*k)) for n>=0.

Table of values

List of values

A118192 Antidiagonal sums of triangle A118190: a(n) = Sum_{k=0..floor(n/2)} 5^(k(n-2k)) for n>=0.